Spindle mounted + VFD:
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Water cooling... crude but it works. My mum is wondering where her bucket has gone!
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Closeup:
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Trimming carbon fiber sheet. Having the spindle going off the end of the bed is dead useful:
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I intended mounting the VFD there to be temporary, but now I'm thinking I might leave it since it saves on cable. The extra mass on the Z axis isn't much compared to what's already there. If I switch the steppers off the Z axis now drops due to gravity. Before the detent torque of the motor was sufficient to stop this.